code: def background(
      self,
      command: str,
      *,
      log_dir: Path,
      ui_mode: UIMode = UIMode.dots,
  ):
      thread = ExecutorThread(command, log_dir=log_dir, ui_mode=ui_mode)
      thread.start()
  
      return 0
  
file_path: labml/remote/labml_remote/execute/local.py
imports: import subprocess
  import threading
  import time
  from pathlib import Path
  from typing.io import IO
  from labml import monit
  from labml_remote.execute import UIMode
label_desc: Use image node_id 2 for calling the LocalExecutor obj's underlying member method code with example usage: obj.background(command) and returns: int